.wt-container{max-width:760px;margin:0 auto;padding:var(--s-4, 16px)}.wt-header{margin-bottom:var(--s-5, 20px)}.wt-title{font-size:1.6rem;font-weight:700;color:var(--text);margin:0 0 6px}.wt-subtitle{color:var(--text2);font-size:.95rem;line-height:1.5;margin:0}.wt-prompt-box{background:var(--surface, var(--card-bg));border:1px solid var(--border);border-radius:14px;padding:var(--s-4, 16px);margin-bottom:var(--s-4, 16px)}.wt-prompt-row{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.wt-label{font-size:.85rem;font-weight:600;color:var(--text2)}.wt-level-pills{display:flex;flex-wrap:wrap;gap:8px}.wt-pill{border:1px solid var(--border);background:var(--bg);color:var(--text2);border-radius:999px;padding:6px 14px;font-size:.88rem;font-weight:600;cursor:pointer;transition:all .15s ease}.wt-pill:hover{border-color:var(--primary);color:var(--text)}.wt-pill--on{background:var(--primary);border-color:var(--primary);color:var(--on-accent)}.wt-topic-row{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding-top:12px;border-top:1px dashed var(--border)}.wt-topic-label{font-size:.85rem;color:var(--text2);font-weight:600}.wt-topic-input{flex:1;min-width:180px;font-size:.98rem;color:var(--text);font-weight:500;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:7px 11px}.wt-topic-input::placeholder{color:var(--text2);font-weight:400}.wt-topic-input:focus{outline:none;border-color:var(--primary)}.wt-topic-hint{margin:6px 0 0;font-size:.78rem;color:var(--text2)}.wt-topic-shuffle{border:1px solid var(--border);background:var(--bg);color:var(--text2);border-radius:8px;padding:5px 10px;font-size:.82rem;cursor:pointer}.wt-topic-shuffle:hover{border-color:var(--primary);color:var(--text)}.wt-input-area{margin-bottom:var(--s-5, 20px)}.wt-textarea{width:100%;border:1.5px solid var(--border);border-radius:12px;background:var(--bg);color:var(--text);padding:14px 16px;font-size:1.15rem;line-height:1.8;font-family:inherit;resize:vertical;box-sizing:border-box;transition:border-color .15s ease}.wt-textarea:focus{outline:none;border-color:var(--primary)}.wt-input-foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px;gap:12px}.wt-count{font-size:.85rem;color:var(--text2)}.wt-count b,#wtCharCount{color:var(--text);font-weight:700}.wt-grade-btn{background:var(--primary);color:var(--on-accent);border:none;border-radius:10px;padding:11px 28px;font-size:1rem;font-weight:700;cursor:pointer;transition:filter .15s ease,opacity .15s ease}.wt-grade-btn:hover{filter:brightness(1.07)}.wt-grade-btn:disabled{opacity:.6;cursor:not-allowed}.wt-grade-btns{display:flex;align-items:center;gap:10px}.wt-grade-btn--deep{background:transparent;color:var(--text);border:1.5px solid var(--border);padding:10px 18px;font-size:.92rem}.wt-grade-btn--deep:hover{filter:none;border-color:var(--primary);color:var(--primary)}.wt-grade-btn--deep:disabled{opacity:.5}.wt-cost-note{margin-top:10px;font-size:.82rem;color:var(--text2);background:var(--warning-bg, rgba(245,158,11,.1));border-radius:8px;padding:8px 12px}.wt-loading{display:flex;flex-direction:column;align-items:center;gap:14px;padding:40px 20px;color:var(--text2)}.wt-spinner{width:38px;height:38px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:wt-spin .8s linear infinite}@keyframes wt-spin{to{transform:rotate(360deg)}}.wt-result{margin-top:var(--s-4, 16px)}.wt-score-row{display:flex;align-items:center;gap:20px;background:var(--surface, var(--card-bg));border:1px solid var(--border);border-radius:14px;padding:20px;margin-bottom:var(--s-4, 16px)}.wt-score-circle{--wt-ring: var(--primary);flex:0 0 auto;width:92px;height:92px;border-radius:50%;display:flex;align-items:baseline;justify-content:center;background:radial-gradient(closest-side,var(--surface, var(--card-bg)) 78%,transparent 79%),conic-gradient(var(--wt-ring) calc(var(--wt-pct, 1) * 360deg),var(--border) 0);border:4px solid var(--wt-ring)}.wt-score-num{font-size:2rem;font-weight:800;color:var(--text)}.wt-score-max{font-size:.9rem;color:var(--text2)}.wt-score-meta{flex:1}.wt-score-level{display:inline-block;font-size:.82rem;font-weight:700;color:var(--primary);background:var(--primary-bg, rgba(220,38,38,.1));border-radius:999px;padding:3px 12px;margin-bottom:8px}.wt-score-summary{margin:0;color:var(--text);line-height:1.55;font-size:.96rem}.wt-score-model{display:inline-block;margin-top:8px;font-size:.74rem;font-weight:600;color:var(--text2);background:var(--surface-2, rgba(127,127,127,.1));border:1px solid var(--border, rgba(127,127,127,.2));border-radius:999px;padding:2px 10px}.wt-block{background:var(--surface, var(--card-bg));border:1px solid var(--border);border-radius:14px;padding:16px 18px;margin-bottom:var(--s-3, 12px)}.wt-block-title{font-size:1rem;font-weight:700;color:var(--text);margin:0 0 10px}.wt-list{margin:0;padding-left:20px}.wt-list li{color:var(--text);line-height:1.6;margin-bottom:5px}.wt-noerr{color:var(--success);margin:0;font-weight:600}.wt-err-item{border-left:3px solid var(--border);padding:8px 0 8px 12px;margin-bottom:12px}.wt-err-item:last-child{margin-bottom:0}.wt-etype{display:inline-block;font-size:.75rem;font-weight:700;color:var(--text2);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:2px 8px;margin-bottom:6px}.wt-etype--liang{color:var(--on-accent);background:var(--danger);border-color:var(--danger)}.wt-err-fix{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:1.05rem}.wt-err-orig{color:var(--danger);text-decoration:line-through;text-decoration-thickness:1px}.wt-err-arrow{color:var(--text2)}.wt-err-corr{color:var(--success);font-weight:600}.wt-err-explain{margin:6px 0 0;color:var(--text2);font-size:.9rem;line-height:1.5}.wt-improved{background:var(--bg);border-radius:10px;padding:14px 16px;font-size:1.15rem;line-height:1.9;color:var(--text);white-space:pre-wrap}.wt-copy-btn{margin-top:10px;border:1px solid var(--border);background:var(--bg);color:var(--text2);border-radius:8px;padding:6px 14px;font-size:.85rem;cursor:pointer}.wt-copy-btn:hover{border-color:var(--primary);color:var(--text)}.wt-raw-text{white-space:pre-wrap;color:var(--text);line-height:1.6;font-size:.95rem}.wt-history{margin-top:var(--s-5, 20px)}.wt-history-title{font-size:1rem;font-weight:700;color:var(--text);margin:0 0 12px}.wt-history-list{display:flex;flex-direction:column;gap:8px}.wt-h-item{display:flex;align-items:center;gap:12px;background:var(--surface, var(--card-bg));border:1px solid var(--border);border-radius:10px;padding:10px 14px}.wt-h-score{flex:0 0 auto;width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;color:var(--text2);background:var(--bg)}.wt-h-good{color:var(--on-accent);background:var(--success)}.wt-h-mid{color:var(--on-accent);background:var(--warning)}.wt-h-low{color:var(--on-accent);background:var(--danger)}.wt-h-body{display:flex;flex-direction:column;gap:2px;min-width:0}.wt-h-topic{color:var(--text);font-weight:500;font-size:.92rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wt-h-meta{color:var(--text2);font-size:.8rem}.wt-highlight{background:var(--bg);border-radius:10px;padding:14px 16px;font-size:1.15rem;line-height:2;color:var(--text);white-space:pre-wrap;word-break:break-word}mark.wt-hl{background:var(--danger-bg, rgba(220,38,38,.14));color:var(--danger);border-bottom:2px solid var(--danger);border-radius:4px 4px 0 0;padding:0 2px;cursor:help}.wt-hl-fix{display:inline-block;margin-left:3px;font-size:.72em;font-weight:700;color:var(--success);vertical-align:.35em;white-space:nowrap}.wt-hl-hint{margin:10px 0 0;font-size:.8rem;color:var(--text2)}.wt-hl-hint mark.wt-hl{cursor:default;font-size:.9em}.wt-history-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:4px}.wt-history-head .wt-history-title{margin:0}.wt-history-clear{border:1px solid var(--border);background:var(--bg);color:var(--text2);border-radius:8px;padding:5px 12px;font-size:.82rem;cursor:pointer}.wt-history-clear:hover{border-color:var(--danger);color:var(--danger)}.wt-history-hint{margin:0 0 12px;font-size:.8rem;color:var(--text2)}.wt-h-card{background:var(--surface, var(--card-bg));border:1px solid var(--border);border-radius:10px;overflow:hidden}.wt-h-card .wt-h-item{background:transparent;border:none;border-radius:0;cursor:pointer}.wt-h-card .wt-h-item:hover{background:var(--surface-2, rgba(127,127,127,.06))}.wt-h-del{flex:0 0 auto;margin-left:auto;border:none;background:transparent;color:var(--text2);font-size:1rem;cursor:pointer;padding:4px 6px;border-radius:6px;opacity:.6}.wt-h-del:hover{opacity:1;background:var(--danger-bg, rgba(220,38,38,.12))}.wt-h-detail{display:none;border-top:1px dashed var(--border);padding:12px 14px}.wt-h-essay{background:var(--bg);border-radius:8px;padding:10px 12px;font-size:1.05rem;line-height:1.9;white-space:pre-wrap;word-break:break-word}.wt-h-summary{margin:10px 0 0;color:var(--text2);font-size:.9rem;line-height:1.5}.wt-h-errs{margin-top:10px;display:flex;flex-direction:column;gap:4px}.wt-h-err{font-size:1rem}.wt-h-improved{margin-top:10px;background:var(--bg);border-radius:8px;padding:10px 12px;font-size:1.05rem;line-height:1.8;white-space:pre-wrap}.wt-h-improved-label{font-size:.82rem;font-weight:700;color:var(--text2)}@media(max-width:600px){.wt-score-row{flex-direction:column;text-align:center;gap:14px}.wt-input-foot{flex-direction:column;align-items:stretch}.wt-grade-btns{flex-direction:column;width:100%}.wt-grade-btn{width:100%}}